Siemens EF 711 Series Guía de usuario Pagina 91

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Configuring the Wireless AP
SCALANCE WLC711
User Guide, V8.11, 07/2012, C79000-G8976-C260-03 3-3
Figure 3-1 SCALANCE W786-2 HPW Outdoor Wireless AP
Figure 3-1 illustrates the following:
The SCALANCE Outdoor Wireless AP has two radios — Radio 1 and Radio 2.
Radio 1 supports the 5 GHz radio, with radio mode a.
Radio 2 supports the 2.4 GHz radio, with radio modes b, g, and b/g.
Radio 1 and Radio 2 are connected to external antennas — 1A, 1B and 2A, 2B.
5 GHz radio supporting the 802.11a standard — The 802.11a standard is an extension to 802.11
that applies to wireless LANs and provides up to 54 Mbps in the 5-GHz band. The 802.11a
standard uses an orthogonal frequency division multiplexing encoding scheme, rather than
Frequency-Hopping Spread Spectrum (FHSS) or Direct-Sequence Spread Spectrum (DSSS).
2.4 GHz radio supporting the 802.11b/g standards — The 802.11g standard applies to wireless
LANs and specifies a transmission rate of 54 Mbps. The 802.11b (High Rate) standard is an
extension to 802.11 that specifies a transmission rate of 11 Mbps. Since 802.11g uses the same
communication frequency range as 802.11b (2.4 GHz), 802.11g devices can co-exist with 802.11b
devices on the same network.
The radios are enabled or disabled through the SCALANCE IWLAN Controller. Both radios can
be enabled to offer service simultaneously. For more information, see “Modifying Wireless AP
W786-2HPW Radio Properties” on page 3-39.
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